The Influence of Hyporheic Flow on River Temperature: River water emerging from naturally occurring gravel bars on a hot summer day may be as much as 2°C cooler than mainstem flow. We explored the potential thermal benefits of hyporheic exchange from proposed gravel augmentation on the Clackamas River, Oregon.

Roaring Spring emerges from old lava flows high in the headwaters of the McKenzie River. Cold (4C), clear and abundant, this spring's flow is equal to 1% of the water in the Willamette River at Portland Harbor.

Student Laura Hempel surveys Jack Creek in the Deschutes National Forest with a digital camera and painter's pole. The photos will be processed using a digital photogrammetry technique called "Structure from Motion," that creates a 3D model using photos taken from different angles.

Will creating artificial (beaver) dams in incised channels in central Oregon help raise the water table and restore meadow grasses for grazing?

The October 2007 breaching of a temporary cofferdam constructed during removal of the 15-meter (m)-tall Marmot Dam on the Sandy River, Oregon, triggered a rapid sequence of fluvial responses as ~730,000 cubic meters (m3) of sand and gravel filling the former reservoir became available to a high-gradient river.